Cultivator.



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3 Shaets-$heet I.

(No Model.)

No. 701,006. Patented May 27, I902. J. B. BARTHDLOMEW.

CULTIVATOR.

(Application filed Feb. 16, 1897.)

3 Sheets-Sheet 2 (No Model.)

JOHN B.

STATES" PATENT OFFICE.

MANUFACTURING COMPANY, OF PEORIA, ILLINOIS.

CU LTIVATO R.

, SPECIFICATION forming part of Letters Patent No. 701,006 dated May 27, 1902.

Application filed February 16,1897. Serial No. 623,662. (No model.)

To aZZ whom it mag concern:

Be it known that I,JoHN B. BARTHOLOMEW, a citizen of the United States, residing at Peoria, in the county of Peoria and State of Illinois, have invented certain new and useful Improvements in Cultivators; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

Figure l is a longitudinal section of a cultivator embodying myimprovements. Fig. 2 is a side or face view of the parts at the upper ends of the beam-supporting bars. Fig. 3 is a top View of the parts in Fig. 2. Figs. 4, 5, 6, and 7 illustrate modifications. Fig. 8 shows another modification. Fig. 9 is a side View of the rack in a form also suitable for use in the construction shown in Fig. 7 under certain conditions.

In the drawings the ground-wheels are in dicated byA, the crank-axle by B, the tongue by O, the longitudinal frame-bars by D, and the seat by D. These may be of any wellknown or of any preferred form. The axle is cranked, it having spindles at b, uprights at Z), and a cross-bar at 12 but in this respect also there can be Variation.

The shovel-beams or drag-bars are indicated byE, these carrying standards or shanks for the support of the shovels. They are pivotally connected with the frame by means of supports and hinges, as shown at F, the axis being illustrated at e.

H is a bar supported upon and extending upward from the transverse part b of the crank-axle B. This bar H is supported at its lower end by a pivot at I, and at the upper end has means, such as a hook or projection H, for a purpose to be described.

J is a bar pivotally connected to the beam or drag bar E and extending up to the upper end of the bar H. It maybe formed of tubing or other material. At the lower end it is secured by a pivot J to the drag-bar or plowbeam, and at the upper end is loosely connected to the aforesaid bar H.

The bars H and J are provided with means for controlling their backward movement, these in this instance being a chain at K, with devices at the upper end for connecting it to the bars and with devices at the lower end for suitably attaching it. I have shown in conjunction with the parts above referred to means which I have employed in some constructions and which are shown and described in another application forpatent, No. 594,581, filed June 6, 1896. They consist of a bar M, pivoted at m to an arm of the swinging bar H, and at its front end carrying a verticallyarranged lever N. At m there is a guideway in which the bar M can slide to a limited extent. L is a spring connecting the vertical lever N with the bar H, and the aforesaid chain K is also connected to the lever N, as shown. These devices, as will be seen bythe drawings, are so constructed and arranged as to utilize the entire force of the spring L in lifting the beam, inasmuch as the spring draws directly forward upon the bar H at the rear end and at the same time its front end acts to push the bar M backward, and after the pivot at has passed a certain line this movement of bar M assists in throwing the bar H forward and lifting the beam; but these details can be varied or omitted entirely, and any ordinary manner of fastening the forward end of the chain K can be followed.

The'upper end of the upright bar J carries a swinging ratcheted bar 0 and is also provided with ahinging support at Pfor a lever Q. The latter is pivoted at P, and at its front end 19 is connected with the chain K. The bar Q extends backward and has an aperture at q, through which passes the toothed bar 0. The pin qpasses across this aperture and is adapted to engage with one or another of the teeth 0. The latter are curved or rounded on their upper edges, so that they can readily slip past the pin in one direction, but will firmly engage therewith in the opposite direction. The bar 0 is provided with a spring R, interposed between it and thebar J, it being hinged at 1". With the parts constructed and arranged in this manner it will be seen that the driver can at any time readily adjust the positions vertically of the shovels without line.

stopping the operation of the machine and without disconnecting the spring or any of the parts of the suspending devices and making new connections. Should he desire to lower the shovel-points, it is merely necessary to push forward slightly on the upper end of the bar 0 to release the pin q, and thereupon the chain K and the spring will cause the bar 0 to swing upward, so that the pin q can engage with a higher tooth. This results in allowing the bar J to move in such manner as to lower the shovels. On the other hand, if he desires to elevate them somewhat he has merely to draw down slightly on the rear end of the lever Q, which action causes the pin q to slip down over one or more of the curved teeth and engage with a lower one, and thereafter on removing his hand the lever Q, the chain, and the spring will cause the bar J to draw up slightly on the beam and hold it at a higher line.

I am aware that cultivators of this general class have been made; but I believe myself to be the first to have provided them with adj usting devices whereby the operator can at any time alter the positions of the shovels without materially changing the positions of any of the fixed parts without separating the connections between any of the parts of the automatic lifting and suspending devices and making adjustments and new connections between such parts.

. It will be seen that the parts at H or K, or both, and their attachments can be regarded as a holder for the lifting-bar J and that the adjusting devices are interposed between this holder and the lifting-bar, and, again, it will be noticed that the adjusting devices are interposed between the spring and the beam, so that the tension and action of the spring can be allowed to remain without material alteration, and yet the vertical adjustment of the beam and shovels can be accomplished even while the machine is in motion and the shovels are in operation.

In Fig. 4a modification is illustrated. Here the spring Lis arranged in a well-known manner, it being connected to the frame at N and having a chain or equivalent at K for connecting it to the parts H and J.

Fig. 7 illustrates another modification, in which the adjusting devices are arranged nearer the plow-beam. The lifting-spring L is of the well-known form and arrangement; but useis also made of a holder, such as a chainT, with or without a spring S, interposed between the main frame and the lower part of the beam-supporting devices. The chain or spring, or both, when used act to prevent the beam from dropping below a fixed This stop is here connected to the lever or arm Q, the latter being pivoted at P and having a ratchet-lock 0. If the arm Q be moved up at its rear end and down at its forward end, the pull of the stop parts T and S is such as to raise the beam somewhat, and vice versa.

In Fig. 9 a lock-bar O is shown with inverted teeth, which can be used, as in Fig. 7, when the line of pull requires it.

In Fig. 8 substantially the same arrangement is illustrated, except that the lever arm or bar Q is somewhat differently shaped and the lock-bar O is inverted.

What I claim is- 1. In a cultivator,the combination of a main frame,a plow-beam pivoted to the main frame, a two-part lifting device for the beam, the parts of which are movable as to each other, joined together by a hinge or flexible connection, means adjacent .to said flexible connection for adjusting the normal working position of the beam, without separating the two parts of the lifting devices, and a spring arranged substantially as set forth to have the adjusting devices between the spring and the beam, as described.

2. In a cultivator, the combination of the main frame, the plow-beam pivoted to the main frame, the lifting-spring, a lifting-bar connected to the beam and having a permanent working connection with the spring, adjusting devices interposed between the spring and the lifting-bar, and provided with means for manual adjustment at any time, whereby the normal working position of the beam can be varied without disconnecting the spring from the lifting-bar, substantially as set forth.

3. In-a cultivator, the combination of the main frame, the plow-beam pivoted to the main frame, the lifting-bar connected to the beam, the spring, means forpermanently connecting the spring to the lifting-bar hav-' ing two parts flexibly connected together and movable relative to each other from one position to another without disconnecting the spring from the lifting-bar, and a lockffor' holding said two parts in either of several 'po-- sitions relative to each other for adjusting the normal working position of the beam, substantially as set forth.

4c. In a cultivator, the combination of the main frame, the plow-beam pivoted to the main frame, the lifting-bar for the beam, the

yielding holder for the lifting-bar which lim-" its its backward movement, the spring arranged to draw upon the holder, and the adjusting devices interposed between the spring and the lifting-bar and permanently connected both to the spring and the bar at all times of adjustment, whereby the operator can effectsuch adjustment without lifting the beam, substantially as set forth;

5. In a cultivator, the combination of the main frame,the plow-beam hinged to the main frame, the lifting-bar connected to the beam, the spring for drawing upon the lifting-bar and means interposed between'the spring and the beam having a lock and a lever or bar controllable by the operator while in his seat, and said means being permanently connected both to the spring and to the beam, for adjusting the beam to and locking it in either of the several working positions without displacing the lifting-bar from its substantially working position, substantially as set forth.

6. In a cultivator, the combination of the main frame,theplow-beam hinged to the main frame, the lifting-bar, the spring for drawing upon the lifting-bar, and two movable bars interposed between the spring and the liftingbar, and a lock for fastening the last two bars together in any of several positions, substantially as set forth.

7. In a cultivator, the combination of the main frame, the plow-beam hinged thereto, the lifting-bar, the means for supporting or holding the lifting-bar, and the bars or levers O Q interposed between the lifting-bar and its holding devices and provided with an adjustable lock, substantially as set forth.

8. In a cultivator, the combination of the main frame, the plow-beam having its rear end vertically adjustable, the lifting-bar, the support or holder for the lifting-bar, and the bars 0 and Q interposed between the liftingbar and its support, one of said bars 0 and Q, being provided with teeth and the other with a pin, substantially as set forth.

9. In a cultivator, the combination of the main frame, the plow-beam having its rear end vertically adjustable, the lifting-bar, the holder for the lifting-bar, and the bars 0 and Q permanently connected together and to the lifting-bar and provided with a ratchet-lock for sustaining the lifting-bar in any of several positions, substantially as set forth.

10. In a cultivator, the combination of the main frame, the plow-beam having its rear end vertically adjustable, the lifting-bar J extending from the beam to a point above the main frame, the holding-bar II, the spring connected to the said bars J and II, and a vibrating lever mounted on said bars J and H for adjusting the plow-beam vertically while the plows are in operation, substantially as set forth.

11. In a cultivator, thecombination of the main frame, the plow-beam having its rear end vertically adjustable, the holding-bar H pivotally connected to the main frame and extending upward therefrom, the bar J pivotally connected to the bar H and to the plowbeam, the chain connected to the bars J and H and means permanently connected with and mounted on the bars J and H, and permanently connected with the chain for vertically adjusting the beam and looking it in different positions, substantially as set forth.

12. In a cultivator, the combination of the main frame, the plow-beam having its rear end vertically adjustable, the holding-bar H pivotally connected to the main frame and extending upward therefrom, the lifting-bar J flexibly connected to the holding-bar II, the

lever Q pivotally connected to the bars J and H, the chain connected to the said lever, and the locking device interposed between the lever and the lifting-bar J, substantially as set forth.

13. In a cultivator, the combination with the vertically-adj ustable plow-beam,of a holding-bar H, a lifting-bar J, the vibrating lever Q and the vibrating locking-bar O, substantially as set forth.

14. In a cultivator, the combination of the vertically-adjustable plow-beam, a holdingbar, II, a lifting-bar, J, a spring arranged to act on said bars to lift the beam from its Working position, means connecting said spring to said bars through which the spring acts on the beam to hold it in its normal working position, and an adjusting device for varying the normal working position of the beam, substantially as set forth.

15. In a cultivator, the combination of the main frame, the plow-beam pivoted to the main frame, means for supporting the rear end of the beam, comprising the bars H and J, a spring for controllingsaid supporting means and the beam and having a suitable attachment at one end connecting it with the frame, a movable spring-support carried by the said supporting means, and devices for adjusting the said spring-support on the beamsupporting means to vary the normal depth at which the shovel shall work, substantially as set forth.

16. In a cultivator the combination of a main frame, a plow-beam pivoted to the main frame, means for supporting the rear end of the beam comprising the rods H J, a supporting-spring, and means, comprising a pivoted member, through which the spring is connected with the said supporting means, arranged to change the effective length of the beam-supporting means by the moving of the said member while the machine is in operation, substantially as set forth.

17. In a cultivator, the combination of the main frame, a plow-beam pivoted to the main frame, means for supporting the rear end of the beam, comprising the rods or bars II and J, a supporting-spring connected with the beam-supporting means, and a hand-lever interposed between the spring and the beam and arranged to change the effective length of the beam-supporting means while the machine is in operation, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN B. BARTHOLOMEW.

IVitnesses:

THOMAS A. WHrrwoRTH, HARRY N. BLAoKMoN. 

